JP6253332B2 - Installation structure and installation method of shaft canopy - Google Patents

Installation structure and installation method of shaft canopy Download PDF

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JP6253332B2
JP6253332B2 JP2013211038A JP2013211038A JP6253332B2 JP 6253332 B2 JP6253332 B2 JP 6253332B2 JP 2013211038 A JP2013211038 A JP 2013211038A JP 2013211038 A JP2013211038 A JP 2013211038A JP 6253332 B2 JP6253332 B2 JP 6253332B2
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liner plate
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祐治 鎌崎
祐治 鎌崎
一慶 大木
一慶 大木
亮 隅田
亮 隅田
▲鶴▼見　明俊
明俊 ▲鶴▼見
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JFE Metal Products and Engineering Inc
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Description

本発明は、ライナープレート立抗の天端開口部を覆う立坑用天蓋に関するものである。   The present invention relates to a shaft canopy that covers a top end opening of a liner plate stand.

ライナープレート立抗に取り付けられる天蓋は、ライナープレートの上端部に固定されるリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されたパネルとを有する。この種の天蓋には、重量が５００ｋｇを超えるものがあり、このような大重量の天蓋を立坑に取り付ける際には、クレーン等の重機が用いられる。   The canopy attached to the liner plate resist includes a ring-shaped frame fixed to the upper end portion of the liner plate, a beam extending vertically and horizontally inside the frame, and a panel supported by the beam. Some of these types of canopies have a weight exceeding 500 kg, and when attaching such a heavy canopy to a shaft, a heavy machine such as a crane is used.

特開平１０−２６６２２８号公報Japanese Patent Laid-Open No. 10-266228 特開２００６−２６５８７８号公報JP 2006-265878 A

立坑への天蓋の取り付けにクレーン等の重機を使用する場合、重機の移動経路や設置場所等の作業スペースが必要となり、天蓋を取付現場に搬入するための準備作業だけでも大変大掛かりなものとなる。しかしながら、地すべり地などの集水井戸として用いられるライナープレート立抗等は、山岳地域の狭隘な場所に設置されることが多いため、十分な作業スペースを確保することが困難であった。また、蓋材が腐食などにより、更新の必要が生じた場合にも、材料搬入等が困難であり大きな問題となっていた。   When using heavy machinery such as cranes to attach canopies to vertical shafts, work space such as moving routes and installation locations for heavy machinery is required, and even preparation work for bringing the canopy to the installation site is very large. . However, liner plate bearings used as water collection wells such as landslide sites are often installed in confined areas in mountainous areas, making it difficult to secure sufficient working space. In addition, even when the lid member needs to be renewed due to corrosion or the like, it is difficult to carry in the material and the like, which is a big problem.

クレーン等の重機や材料搬入路の設置を不要とするためには、天蓋を人力で運搬・施工できる程度の重量・大きさの部材に分割し、各部材を天蓋の取り付け現場に人力で運搬した後、その場で組み立てて立抗に取り付ける施工方法が実現されなければならない。   In order to eliminate the need for heavy equipment such as cranes and material carry-in routes, the canopy was divided into members that were heavy and large enough to be transported and constructed manually, and each member was transported manually to the canopy installation site. Later, a construction method that can be assembled on the spot and attached to the resist must be realized.

しかし、天蓋を複数の部材に分割した場合、天蓋の取り付け作業中に部材を立坑内に落下させないように、立坑内部で作業員が構成部材を支えながら作業しなければならなくなる。立坑内部での天蓋取り付け作業は、深さが１０ｍ〜５０ｍ程度の立坑上部での作業となるため大変危険である。   However, when the canopy is divided into a plurality of members, the worker must work while supporting the constituent members inside the shaft so that the member does not fall into the shaft during the canopy mounting operation. The canopy attachment work inside the shaft is very dangerous because it is a work at the top of the shaft with a depth of about 10-50 m.

本発明が解決使用とする課題は、立坑用天蓋を複数の部材に分割して取り付け現場に運搬し、作業員が立坑内部で作業を行うことなく安全に立坑に取り付けることができる立坑用天蓋の取付構造及び取付工法を提供することにある。   The problem to be solved by the present invention is that the shaft canopy is divided into a plurality of members, transported to the installation site, and can be safely attached to the shaft without an operator working inside the shaft. It is to provide a mounting structure and a mounting method.

上記課題を解決するために、本発明の立坑用天蓋の取付構造は、ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付構造であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有することを特徴としている。 In order to solve the above-described problems, a structure for attaching a canopy for a shaft according to the present invention includes a ring-shaped frame fixed to an upper end portion of a liner plate, a beam stretched vertically and horizontally inside the frame, and the beam And a canopy panel mounting structure having a canopy panel that is supported by and covers the upper end opening of the liner plate,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
And a plurality of peripheral panel members that are supported by the pair of left and right central beam members and the left and right beam members and are provided at the peripheral edge of the upper end opening of the liner plate.

この取付構造によれば、立坑用天蓋を複数の部材に分割して取り付け現場に運搬し、本発明の下記の取付工法により、作業員が立坑内部で作業を行うことなく、天蓋を安全に立坑に取り付けることができる。   According to this mounting structure, the shaft canopy is divided into a plurality of members and transported to the mounting site, and the canopy can be safely secured without the operator performing work inside the shaft by the following mounting method of the present invention. Can be attached to.

本発明の立坑用天蓋の取付工法は、ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付工法であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有し、
前記ライナープレートの上端部に前記枠を取り付ける工程、
前記左右一対の中央梁部材のうち一方の中央梁部材の横梁部と前記左右の梁部材うちの一方の梁部材とを連結するとともに、当該一方の中央梁部材に前記中央パネル部材を取り付けた状態で、当該一方の中央梁部材と当該一方の梁部材とを前記枠に取り付ける工程、
前記左右一対の中央梁部材のうち他方の中央梁部材の横梁部と前記左右の梁部材うちの他方の梁部材とを連結するとともに、当該他方の中央梁部材に前記中央パネル部材を取り付けた状態で、当該他方の中央梁部材と当該他方の梁部材とを前記枠に取り付ける工程、及び、
前記左右一対の中央梁部材及び前記左右の梁部材に前記周縁パネル部材を取り付ける工程を順次経て、前記立坑用天蓋を前記ライナープレートの上端開口部に取り付けることを特徴としている。 The shaft canopy mounting method of the present invention includes a ring-shaped frame fixed to the upper end of the liner plate, a beam stretched vertically and horizontally inside the frame, and an upper end of the liner plate supported by the beam. A method for mounting a canopy for a shaft having a canopy panel covering an opening,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
A plurality of peripheral panel members that are supported by the pair of left and right central beam members and the left and right beam members and are provided at the peripheral edge of the upper end opening of the liner plate;
Attaching the frame to the upper end of the liner plate;
A state in which a horizontal beam portion of one central beam member and one beam member of the left and right beam members are connected to each other and the central panel member is attached to the one central beam member. And attaching the one central beam member and the one beam member to the frame,
A state in which the horizontal beam portion of the other central beam member and the other beam member of the left and right beam members are connected to each other and the central panel member is attached to the other central beam member. And attaching the other central beam member and the other beam member to the frame, and
The shaft canopy is attached to the upper end opening of the liner plate by sequentially attaching the peripheral panel member to the pair of left and right central beam members and the left and right beam members.

この取付工法によれば、立坑用天蓋を複数の部材に分割して取り付け現場に運搬できる。そして、ライナープレートの上端部に枠を取り付ける工程と、当該枠に左右一対の中央梁部材と左右の梁部材とを中央パネル部材と共に取り付ける工程とを経ることにより、立坑内部での作業や高所足場での作業を要することなく、中央パネル部材を立坑の上端開口部の中央部に安全に取り付けることができる。そして、立坑の外側から安全に周縁パネル部材の取り付けを行うことができる。   According to this attachment method, the shaft canopy can be divided into a plurality of members and transported to the installation site. Then, through a process of attaching a frame to the upper end of the liner plate and a process of attaching a pair of left and right central beam members and left and right beam members to the frame together with the central panel member, the work and height inside the shaft The center panel member can be safely attached to the center of the upper end opening of the shaft without requiring any work on the scaffold. And a peripheral panel member can be safely attached from the outside of a shaft.

また、本発明の別の立坑用天蓋の取付工法は、ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付工法であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有し、
前記ライナープレートの上端部に前記枠を取り付ける工程、
前記左右一対の中央梁部材と前記左右の梁部材とを前記枠に取り付けるととともに、前記左右一対の中央梁部材の横梁部と前記左右の梁部材の横梁部とを互いに連結する工程、
前記左右一対の中央梁部材及び前記左右の梁部材に前記周縁パネル部材を取り付ける工程、及び、
前記左右一対の中央梁部材に前記中央パネル部材を取り付ける工程、を順次経て、前記立坑用天蓋を前記ライナープレートの上端開口部に取り付けることを特徴としている。 Further, another shaft canopy mounting method according to the present invention includes a ring-shaped frame fixed to the upper end of the liner plate, a beam extending vertically and horizontally inside the frame, and supported by the beam. A method for mounting a canopy for a shaft having a canopy panel covering an upper end opening of a liner plate,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
A plurality of peripheral panel members supported by the pair of left and right central beam members and the left and right beam members and provided at a peripheral edge portion of an upper end opening of the liner plate;
Attaching the frame to the upper end of the liner plate;
Attaching the pair of left and right central beam members and the left and right beam members to the frame, and connecting the lateral beam portions of the pair of left and right central beam members and the lateral beam portions of the left and right beam members;
Attaching the peripheral panel member to the pair of left and right central beam members and the left and right beam members; and
The step of attaching the central panel member to the pair of left and right central beam members is sequentially performed, and the canopy for the shaft is attached to the upper end opening of the liner plate.

この取付工法によれば、立坑用天蓋を複数の部材に分割して取り付け現場に運搬できる。そして、ライナープレートの上端部に枠を取り付ける工程と、左右一対の中央梁部材と左右の梁部材とを枠に取り付ける工程と、左右一対の中央梁部材及び左右の梁部材に周縁パネル部材を取り付ける工程とを経ることにより、立坑内部での作業や高所足場での作業を要することなく、立坑の上端開口部の周縁部に周縁パネル部材を安全に取り付けることができる。そして、この周縁パネル部材を足場にして安全に中央パネル部材の取り付けを行うことができる。   According to this attachment method, the shaft canopy can be divided into a plurality of members and transported to the installation site. Then, a step of attaching a frame to the upper end portion of the liner plate, a step of attaching a pair of left and right central beam members and left and right beam members to the frame, and attaching a peripheral panel member to the pair of left and right central beam members and the left and right beam members By going through the steps, the peripheral panel member can be safely attached to the peripheral edge portion of the upper end opening of the shaft without requiring the work inside the shaft or the work at the height platform. Then, the center panel member can be safely attached using the peripheral panel member as a scaffold.

本発明の立坑用天蓋の取付構造及び取付工法において、前記枠は、ライナープレートの上端開口部に挿入される管状部と、当該管状部の上端を縁取って外方に張り出したフランジ部とを有し、前記管状部には、前記ライナープレートから前記枠が外されるのを防止するための枠外れ防止部材が取り付けられていることが望ましい。この構成によれば、立坑用天蓋の破壊・盗難を防止することができる。   In the shaft canopy mounting structure and mounting method according to the present invention, the frame includes a tubular portion that is inserted into the upper end opening of the liner plate, and a flange portion that protrudes outward by fringing the upper end of the tubular portion. Preferably, the tubular portion is attached with a frame detachment preventing member for preventing the frame from being removed from the liner plate. According to this structure, destruction and theft of the shaft canopy can be prevented.

本発明の立坑用天蓋の取付構造及び取付工法において、前記中央パネル部材及び前記周縁パネル部材は、片締ボルトを使用して前記梁に固定されることが望ましい。この構成によれば、中央パネル部材及び周縁パネル部材の上方から片締ボルトを締着する作業を行うだけで、中央パネル部材及び周縁パネル部材を梁に取り付けることができる。   In the shaft canopy mounting structure and mounting method according to the present invention, it is preferable that the center panel member and the peripheral panel member are fixed to the beam by using a single bolt. According to this configuration, the center panel member and the peripheral panel member can be attached to the beam only by performing an operation of fastening the single bolt from above the central panel member and the peripheral panel member.

本発明の立坑用天蓋の取付構造及び取付工法によれば、立坑用天蓋を複数の部材に分割して取り付け現場に運搬し、作業員が立坑内部で作業を行うことなく安全に立坑に取り付けることができる。   According to the shaft canopy mounting structure and mounting method of the present invention, the shaft canopy is divided into a plurality of members and transported to the installation site, so that workers can safely attach to the shaft without performing work inside the shaft. Can do.

本発明の立坑用天蓋の取付構造の実施形態を例示する平面図The top view which illustrates embodiment of the attachment structure of the canopy for shafts of this invention （Ａ）：図１のＡ−Ａ断面図 （Ｂ）：図１のＢ−Ｂ断面図 （Ｃ）：図１のＣ−Ｃ断面図 （Ｄ）：図１のＤ−Ｄ断面図(A): AA sectional view of FIG. 1 (B): BB sectional view of FIG. 1 (C): CC sectional view of FIG. 1 (D): DD sectional view of FIG. （Ａ）：中央梁部材の平面図 （Ｂ）：中央梁部材の側面図 （Ｃ）：中央梁部材の正面図(A): Plan view of center beam member (B): Side view of center beam member (C): Front view of center beam member （Ａ）：左梁部材の平面図 （Ｂ）：左梁部材の側面図 （Ｃ）：左梁部材の正面図(A): Plan view of left beam member (B): Side view of left beam member (C): Front view of left beam member （Ａ）：右梁部材の平面図 （Ｂ）：右梁部材の側面図 （Ｃ）：右梁部材の正面図(A): Plan view of right beam member (B): Side view of right beam member (C): Front view of right beam member （Ａ）：中央梁部材、左梁部材及び右梁部材の治具挿入部を示す要部斜視図 （Ｂ）：治具挿入部に治具が挿着されている状態を示す要部斜視図(A): Perspective view of main part showing jig insertion part of center beam member, left beam member, and right beam member (B): Main part perspective view showing a state in which a jig is inserted in the jig insertion part. 枠に中央梁部材及び左梁部材を取り付けた際の治具の使用状態を示す平面図The top view which shows the use condition of a jig when attaching a central beam member and a left beam member to a frame （Ａ）：周縁パネル部材のエキスパンドメタルの平面図 （Ｂ）：当該周縁パネル部材の縁板の平面図(A): Plan view of expanded metal of peripheral panel member (B): Plan view of edge plate of peripheral panel member （Ａ）：別の周縁パネル部材のエキスパンドメタルの平面図 （Ｂ）：当該別の周縁パネル部材の縁板の平面図(A): Plan view of expanded metal of another peripheral panel member (B): Plan view of edge plate of the other peripheral panel member ライナープレートの上端開口縁に枠が取り付けられた状態を示す工程図Process drawing showing a state where a frame is attached to the upper edge opening edge of the liner plate 左側の中央梁部材、左梁部材及び左側の中央パネル部材が枠に取り付けられた状態を示す工程図Process diagram showing a state where the left central beam member, left beam member and left central panel member are attached to the frame 左右の中央梁部材、左梁部材、右梁部材及び左右の中央パネル部材が枠に取り付けられた状態を示す工程図Process diagram showing a state in which the left and right center beam members, left beam members, right beam members and left and right center panel members are attached to the frame 一部の周縁パネル部材が枠に取り付けられた状態を示す工程図Process drawing showing a state in which some peripheral panel members are attached to the frame 左側の中央梁部材及び左梁部材が枠に取り付けられた状態を示す工程図Process drawing showing a state where the left central beam member and left beam member are attached to the frame 左右の中央梁部材、左梁部材及び右梁部材が枠に取り付けられた状態を示す工程図Process diagram showing a state where the left and right center beam members, left beam members and right beam members are attached to the frame 周縁パネル部材が枠及び梁に取り付けられた状態を示す工程図Process drawing showing a state in which the peripheral panel member is attached to the frame and the beam 左側の中央梁部材が梁に取り付けられた状態を示す工程図Process drawing showing the state where the left central beam member is attached to the beam 枠外れ防止部材の別の実施形態を示す要部断面図Sectional drawing of the principal part which shows another embodiment of a frame removal prevention member

以下、本発明を実施するための最良の形態について説明する。   Hereinafter, the best mode for carrying out the present invention will be described.

［立坑用天蓋の取付構造］
まず、立坑用天蓋の取付構造について説明する。
図１は本発明の立坑用天蓋の取付構造の実施形態を例示する平面図、図２は図１の各部の断面図である。 [Shaft canopy mounting structure]
First, the mounting structure of the shaft canopy will be described.
FIG. 1 is a plan view illustrating an embodiment of a shaft canopy mounting structure according to the present invention, and FIG. 2 is a cross-sectional view of each part of FIG.

立坑用天蓋１は、ライナープレート２の上端部に固定されたリング状の枠１０と、枠１０の内側に縦横に張設された梁２０と、梁２０に支持されてライナープレート２の上端開口部を覆う天蓋パネル４０とを有する。   The shaft canopy 1 includes a ring-shaped frame 10 fixed to the upper end of the liner plate 2, a beam 20 stretched vertically and horizontally inside the frame 10, and an upper end opening of the liner plate 2 supported by the beam 20. And a canopy panel 40 covering the part.

枠１０は、円弧状の４つの枠部材１１乃至１４をリング状に連結してなる。枠部材１１乃至１４は、継手板を介しボルト及びナットによって相互に連結されている。枠１０は、ライナープレート２の上端開口部に挿入される管状部１０ａと、管状部１０ａの上端全周を縁取って外方に張り出したフランジ部１０ｂとを有している。フランジ部１０ｂには、天蓋パネル４０を固定するためのボルト挿通孔１７が周方向複数箇所に形成されている。管状部１０ａの内側には、梁２０を固定するための受金具１５が周方向複数箇所に固定されている。受金具１５にはボルト挿通孔１５ａが形成されている（図１０）。   The frame 10 is formed by connecting four arc-shaped frame members 11 to 14 in a ring shape. The frame members 11 to 14 are connected to each other by bolts and nuts via joint plates. The frame 10 includes a tubular portion 10a that is inserted into the upper end opening of the liner plate 2, and a flange portion 10b that rims the entire upper end of the tubular portion 10a and projects outward. Bolt insertion holes 17 for fixing the canopy panel 40 are formed in the flange portion 10b at a plurality of locations in the circumferential direction. On the inner side of the tubular portion 10a, receiving brackets 15 for fixing the beam 20 are fixed at a plurality of locations in the circumferential direction. A bolt insertion hole 15a is formed in the metal fitting 15 (FIG. 10).

管状部１０ａには、枠外れ防止用ボルト（枠外れ防止部材）３５を取り付けるためのボルト挿通孔１６が周方向複数箇所に形成されている（図２（Ｄ））。枠外れ防止用ボルト３５は、ライナープレート２に枠１０を載せた状態で、管状部１０ａの内側からボルト挿通孔１６に挿通され、ナット３６を螺合させて締め付けることにより枠１０に固定されている。枠外れ防止用ボルト３５の胴部はライナープレート２の上端の内周縁よりも外側に延びている。すなわち、この立坑用天蓋１は、枠１０を持ち上げてライナープレート２から外そうとしても、枠外れ防止用ボルト３５の胴部がライナープレート２の上端の内周縁に引っ掛かるため、外すことができない構造になっている。   In the tubular portion 10a, bolt insertion holes 16 for attaching a frame detachment prevention bolt (frame detachment prevention member) 35 are formed at a plurality of locations in the circumferential direction (FIG. 2D). The frame detachment prevention bolt 35 is inserted into the bolt insertion hole 16 from the inside of the tubular portion 10a with the frame 10 placed on the liner plate 2, and is fixed to the frame 10 by screwing and tightening a nut 36. Yes. The body portion of the frame detachment prevention bolt 35 extends outward from the inner peripheral edge of the upper end of the liner plate 2. That is, the shaft canopy 1 cannot be removed because the body of the bolt 35 for preventing frame detachment is caught on the inner peripheral edge of the upper end of the liner plate 2 even if the frame 10 is lifted and removed from the liner plate 2. It has become.

梁２０は、左右一対の中央梁部材２１Ｌ、２１Ｒと、左梁部材２５と、右梁部材２８とを有する。図３乃至図５には、中央梁部材２１Ｌ、２１Ｒ、左梁部材２５及び右梁部材２８の詳細が示されている。   The beam 20 includes a pair of left and right central beam members 21L and 21R, a left beam member 25, and a right beam member 28. 3 to 5 show details of the central beam members 21L and 21R, the left beam member 25, and the right beam member 28. FIG.

中央梁部材２１Ｌ、２１Ｒは、枠１０の中央部に掛け渡して固定された縦梁部２２と、縦梁部２２に櫛歯状に互いに等間隔に固定された複数本（この例では３本）の横梁部２３とを有する櫛形の部材である。両中央梁部材２１Ｌ、２１Ｒは、互いの横梁部２３を逆向きに配置して縦梁部２２同士を接合した状態で枠１０に取り付けられている。縦梁部２２の両端近傍には、ボルト挿通孔２２ａが形成されている（図３（Ｃ））。中央梁部材２１Ｌ、２１Ｒは、縦梁部２２のボルト挿通孔２２ａを受金具１５のボルト挿通孔１５ａに重ね合わせて、両ボルト挿通孔１５ａ、２２ａにボルト３７を挿通し、そのボルト３７にナット３８を螺合させて締め付けることにより枠１０に固定されている（図２（Ｃ））。横梁部２３の先端部には、中央梁部材２１Ｌ、２１Ｒと左梁部材２５及び右梁部材２８とを互いに連結するためのボルト挿通孔２３ａが形成されている（図３（Ｂ））。   The central beam members 21L and 21R include a vertical beam portion 22 that is fixed over the central portion of the frame 10, and a plurality of (three in this example) that are fixed to the vertical beam portion 22 in a comb-teeth shape at equal intervals. ) Of the cross beam 23. Both the central beam members 21L and 21R are attached to the frame 10 in a state in which the horizontal beam portions 23 are arranged in opposite directions and the vertical beam portions 22 are joined to each other. Bolt insertion holes 22a are formed in the vicinity of both ends of the vertical beam portion 22 (FIG. 3C). The central beam members 21L and 21R are configured such that the bolt insertion holes 22a of the vertical beam portion 22 are overlapped with the bolt insertion holes 15a of the bracket 15, and the bolts 37 are inserted into the bolt insertion holes 15a and 22a. 38 is fixed to the frame 10 by screwing and tightening (FIG. 2C). A bolt insertion hole 23a for connecting the central beam members 21L and 21R, the left beam member 25, and the right beam member 28 to each other is formed at the distal end portion of the horizontal beam portion 23 (FIG. 3B).

図６（Ａ）に示すように、中央梁部材２１Ｌ、２１Ｒの縦梁部２２の両端近傍には、治具挿入部５１が設けられている。治具挿入部５１は、鉄製の角管を縦梁部２２の上面に溶接により固定してなる。中央梁部材２１Ｌ、２１Ｒを枠１０に取り付ける際、図６（Ｂ）及び図７に示すように、縦梁部２２の両方の治具挿入部５１に丸棒等（治具）５２が挿着される。   As shown in FIG. 6A, jig insertion portions 51 are provided in the vicinity of both ends of the vertical beam portion 22 of the central beam members 21L and 21R. The jig insertion portion 51 is formed by fixing an iron square tube to the upper surface of the vertical beam portion 22 by welding. When attaching the central beam members 21L and 21R to the frame 10, as shown in FIGS. 6B and 7, round bars or the like (jigs) 52 are inserted into both jig insertion portions 51 of the vertical beam portion 22. Is done.

左梁部材２５は、左側の中央梁部材２１Ｌの左側に配置されて、枠１０に取り付けられている（図１１、図１４）。左梁部材２５は、枠１０に中央梁部材２１Ｌの縦梁部２２に対して平行に掛け渡して固定された縦梁部２６と、縦梁部２６に櫛歯状に固定された横梁部２７とを有する櫛形の部材である。縦梁部２６の両端近傍には、ボルト挿通孔２６ａが形成されている（図４（Ｃ））。左梁部材２５は、縦梁部２６のボルト挿通孔２６ａを受金具１５のボルト挿通孔１５ａに重ね合わせて、両ボルト挿通孔１５ａ、２６ａにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより枠１０に固定されている。すなわち、左梁部材２５の縦梁部２６と枠１０との連結構造は、図２（Ｃ）に示されている中央梁部材２１Ｌ、２１Ｒの縦梁部２２と枠１０との連結構造と同様である。   The left beam member 25 is disposed on the left side of the left central beam member 21L and attached to the frame 10 (FIGS. 11 and 14). The left beam member 25 includes a vertical beam portion 26 that is fixed to the frame 10 in parallel with the vertical beam portion 22 of the central beam member 21L, and a horizontal beam portion 27 that is fixed to the vertical beam portion 26 in a comb shape. A comb-shaped member. Bolt insertion holes 26a are formed in the vicinity of both ends of the vertical beam portion 26 (FIG. 4C). The left beam member 25 has the bolt insertion hole 26a of the vertical beam portion 26 overlapped with the bolt insertion hole 15a of the bracket 15, and the bolts are inserted into the bolt insertion holes 15a and 26a, and nuts are screwed into the bolts. The frame 10 is fixed by tightening. That is, the connection structure between the vertical beam portion 26 of the left beam member 25 and the frame 10 is the same as the connection structure between the vertical beam portion 22 and the frame 10 of the central beam members 21L and 21R shown in FIG. It is.

左梁部材２５の横梁部２７の先端部には、ボルト挿通孔２７ａが形成されている（図３（Ｂ））。左梁部材２５の横梁部２７は、そのボルト挿通孔２７ａを受金具１５のボルト挿通孔１５ａに重ね合わせて、両ボルト挿通孔１５ａ、２７ａにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより枠１０に固定されている。すなわち、左梁部材２５の横梁部２７と枠１０との連結構造も、図２（ｃ）に示されている中央梁部材２１Ｌ、２１Ｒの縦梁部２２と枠１０との連結構造と同様である。   A bolt insertion hole 27a is formed at the tip of the horizontal beam portion 27 of the left beam member 25 (FIG. 3B). The horizontal beam portion 27 of the left beam member 25 has its bolt insertion hole 27a overlapped with the bolt insertion hole 15a of the metal fitting 15, and bolts are inserted into the bolt insertion holes 15a and 27a, and nuts are screwed into the bolts. The frame 10 is fixed by tightening. That is, the connection structure between the horizontal beam portion 27 of the left beam member 25 and the frame 10 is the same as the connection structure between the vertical beam portion 22 of the central beam members 21L and 21R and the frame 10 shown in FIG. is there.

左梁部材２５の縦梁部２６には、左側の中央梁部材２１Ｌの横梁部２３を連結するための連結金具２６ｂが３箇所に固定されている。連結金具２６ａにはボルト挿通孔２６ｃが形成されている（図４（Ｂ））。左梁部材２５と中央梁部材２１Ｌとは、中央梁部材２１Ｌの横梁部２３のボルト挿通孔２３ａを左梁部材２５の連結金具２６ｂのボルト挿通孔２６ｃに重ね合わせて、両ボルト挿通孔２３ａ、２６ｃにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより互いに連結されている。   On the vertical beam portion 26 of the left beam member 25, connection fittings 26b for connecting the horizontal beam portion 23 of the left central beam member 21L are fixed at three locations. A bolt insertion hole 26c is formed in the connection fitting 26a (FIG. 4B). The left beam member 25 and the central beam member 21L are formed by overlapping the bolt insertion holes 23a of the lateral beam portion 23 of the central beam member 21L with the bolt insertion holes 26c of the connecting bracket 26b of the left beam member 25, The bolts 26c are connected to each other by inserting bolts, screwing nuts into the bolts and tightening the nuts.

左梁部材２５の縦梁部２６の両端近傍には、中央梁部材２１Ｌ、２１Ｒの縦梁部２２と同様に、治具挿入部５１が設けられている（図６）。   In the vicinity of both ends of the vertical beam portion 26 of the left beam member 25, jig insertion portions 51 are provided in the same manner as the vertical beam portions 22 of the central beam members 21L and 21R (FIG. 6).

右梁部材２８は、右側の中央梁部材２１Ｒの右側に配置されて、枠１０に取り付けられている（図１２、図１５）。右梁部材２８は、枠１０に中央梁部材２１Ｒの縦梁部２２に対して平行に掛け渡して固定された縦梁部２９と、縦梁部２９に櫛歯状に固定された横梁部３０とを有する櫛形の部材である。   The right beam member 28 is disposed on the right side of the right central beam member 21R and attached to the frame 10 (FIGS. 12 and 15). The right beam member 28 includes a vertical beam portion 29 that is fixed to the frame 10 in parallel with the vertical beam portion 22 of the central beam member 21R, and a horizontal beam portion 30 that is fixed to the vertical beam portion 29 in a comb shape. A comb-shaped member.

右梁部材２８の縦梁部２９の両端近傍には、ボルト挿通孔２９ａが形成されている（図５（Ｃ））。右梁部材２５は、縦梁部２９のボルト挿通孔２９ａを枠１０の受金具１５のボルト挿通孔１５ａに重ね合わせて、両ボルト挿通孔１５ａ、２９ａにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより枠１０に固定されている。すなわち、右梁部材２８の縦梁部２９と枠１０との連結構造も、図２（Ｃ）に示されている中央梁部材２１Ｌ、２１Ｒの縦梁部２２と枠１０との連結構造と同様である。   Bolt insertion holes 29a are formed in the vicinity of both ends of the vertical beam portion 29 of the right beam member 28 (FIG. 5C). The right beam member 25 has the bolt insertion hole 29a of the vertical beam portion 29 overlapped with the bolt insertion hole 15a of the bracket 15 of the frame 10, and the bolts are inserted into the bolt insertion holes 15a and 29a, and nuts are inserted into the bolts. It is fixed to the frame 10 by screwing and tightening. That is, the connection structure between the vertical beam portion 29 of the right beam member 28 and the frame 10 is the same as the connection structure between the vertical beam portion 22 of the central beam members 21L and 21R and the frame 10 shown in FIG. It is.

右梁部材２８の横梁部３０の先端部には、ボルト挿通孔３０ａが形成されている（図５（Ｂ））。右梁部材２８の横梁部３０は、そのボルト挿通孔３０ａを受金具１５のボルト挿通孔１５ａに重ね合わせて、両ボルト挿通孔１５ａ、３０ａにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより枠１０に固定されている。すなわち、右梁部材２８の横梁部３０と枠１０との連結構造も、図２（ｃ）に示されている中央梁部材２１Ｌ、２１Ｒの縦梁部２２と枠１０との連結構造と同様である。   A bolt insertion hole 30a is formed at the distal end portion of the horizontal beam portion 30 of the right beam member 28 (FIG. 5B). The horizontal beam portion 30 of the right beam member 28 is overlapped with the bolt insertion hole 15a of the bracket 15 with the bolt insertion hole 30a, and the bolts are inserted into the bolt insertion holes 15a and 30a, and nuts are screwed into the bolts. The frame 10 is fixed by tightening. That is, the connection structure between the horizontal beam portion 30 of the right beam member 28 and the frame 10 is the same as the connection structure between the vertical beam portion 22 of the central beam members 21L and 21R and the frame 10 shown in FIG. is there.

右梁部材２８の縦梁部２９には、右側の中央梁部材２１Ｒの横梁部２３を連結するための連結金具２６ａが３箇所に固定されている。連結金具２６ａにはボルト挿通孔２６ｂが形成されている（図５（Ｂ）。左梁部材２５と中央梁部材２１Ｌとは、中央梁部材２１Ｌの横梁部２３のボルト挿通孔２３ａを左梁部材２５の連結金具２６ｂのボルト挿通孔２６ｃに重ね合わせて、両ボルト挿通孔２３ａ、２６ｃにボルトを挿通し、そのボルトにナットを螺合させて締め付けることにより互いに連結されている。   On the vertical beam portion 29 of the right beam member 28, connection fittings 26a for connecting the horizontal beam portion 23 of the right central beam member 21R are fixed at three locations. A bolt insertion hole 26b is formed in the connecting fitting 26a (FIG. 5B). The left beam member 25 and the central beam member 21L are formed by connecting the bolt insertion hole 23a of the lateral beam portion 23 of the central beam member 21L to the left beam member. The bolts are overlapped with the bolt insertion holes 26c of the 25 connection fittings 26b, and bolts are inserted into the bolt insertion holes 23a and 26c, and nuts are screwed into the bolts and tightened to each other.

右梁部材２８には、扉４５が取り付けられている。扉４５は、立坑用天蓋１をライナープレート２に取り付けた後に、作業者が立抗内に出入りするための昇降口を塞ぐ鉄板部材である。扉４５は、ヒンジ４６を介して右梁部材２８の右下の横梁部３０に取り付けられている。扉４５の上面には取手４７が取り付けられている。   A door 45 is attached to the right beam member 28. The door 45 is an iron plate member that closes an elevator for an operator to enter and exit the tower after the shaft canopy 1 is attached to the liner plate 2. The door 45 is attached to the lower right horizontal beam portion 30 of the right beam member 28 via a hinge 46. A handle 47 is attached to the upper surface of the door 45.

右梁部材２８の縦梁部２９の両端近傍には、中央梁部材２１Ｌ、２１Ｒの縦梁部２２と同様に、治具挿入部５１が設けられている（図６）。   Similar to the vertical beam portions 22 of the central beam members 21L and 21R, jig insertion portions 51 are provided in the vicinity of both ends of the vertical beam portion 29 of the right beam member 28 (FIG. 6).

上記のように左右一対の中央梁部材２１Ｌ、２１Ｒ及び左右の梁部材２５、２８が互いに連結されて枠１０に取り付けられることにより、枠１０の内側に、縦梁部２２、２６、２９と横梁部２３、２７、３０とをそれぞれ縦横に張設してなる梁２０が形成される（図１２、図１５）。梁２０には、天蓋パネル４０を固定するためのボルト挿通孔１７が所々に形成されている（図３（Ａ）、図４（Ａ）、図５（Ａ））。   As described above, the pair of left and right central beam members 21L and 21R and the left and right beam members 25 and 28 are connected to each other and attached to the frame 10, so that the vertical beam portions 22, 26 and 29 and the horizontal beam are formed inside the frame 10. A beam 20 is formed by extending the portions 23, 27, and 30 vertically and horizontally (FIGS. 12 and 15). Bolt insertion holes 17 for fixing the canopy panel 40 are formed in the beam 20 in various places (FIGS. 3A, 4A, and 5A).

天蓋パネル４０は、左右一対の中央梁部材２１Ｌ、２１Ｒに支持されてライナープレート２の上端開口部の中央部に設けられる複数（この例では２枚）の中央パネル部材４１Ａ、４１Ｂと、左右一対の中央梁部材２１Ｌ、２１Ｒ及び左右の梁部材２５、２８に支持されてライナープレート２の上端開口部の周縁部に設けられる複数（この例では９枚）の周縁パネル部材４２Ａ乃至４２Ｈと、を有する。中央パネル部材４１Ａ、４１Ｂは、いずれも長方形の同形・同寸のパネル部材である。周縁パネル部材４２Ａ乃至４２Ｈは、枠１０に沿った円弧状の辺を有するパネル部材である。   The canopy panel 40 is supported by a pair of left and right central beam members 21L and 21R and is provided in the center of the upper end opening of the liner plate 2 (two in this example) and a pair of left and right central panel members 41A and 41B. A plurality of (9 in this example) peripheral panel members 42A to 42H supported by the central beam members 21L and 21R and the left and right beam members 25 and 28 and provided at the peripheral edge of the upper end opening of the liner plate 2. Have. The central panel members 41A and 41B are rectangular panel members having the same shape and size. The peripheral panel members 42 </ b> A to 42 </ b> H are panel members having arc-shaped sides along the frame 10.

中央パネル部材４１Ａ、４１Ｂ及び周縁パネル部材４２Ａ乃至４２Ｈは、エキスパンドメタル４３にその周縁部を縁取るようにして縁板４４を溶接固定してなる。縁板４４は、エキスパンドメタル４０の縁から若干外側にはみ出しており、そのはみ出している部分の所々に、パネル固定用ボルト６１を挿通するためのボルト挿通孔４４ａが形成されている。図８及び図９は、周縁パネル部材４２Ｂ、４２Ｃの構成を例示している。エキスパンドメタル４３の周縁部には、パネル固定用ボルト６１のヘッド部と干渉しないように切欠部４３ａが形成されている。その他の周縁パネル部材４２Ａ、４２Ｄ、４２Ｅ、４２Ｆ、４２Ｇ、４２Ｈ及び中央パネル部材４１Ａ、４１Ｂの構造も同様である。   The center panel members 41 </ b> A and 41 </ b> B and the peripheral panel members 42 </ b> A to 42 </ b> H are formed by welding and fixing the edge plate 44 to the expanded metal 43 so that the peripheral edge portion is bordered. The edge plate 44 protrudes slightly outward from the edge of the expanded metal 40, and bolt insertion holes 44 a for inserting the panel fixing bolts 61 are formed at the protruding portions. 8 and 9 illustrate the configuration of the peripheral panel members 42B and 42C. A cutout 43 a is formed at the peripheral edge of the expanded metal 43 so as not to interfere with the head of the panel fixing bolt 61. The structures of the other peripheral panel members 42A, 42D, 42E, 42F, 42G, 42H and the central panel members 41A, 41B are the same.

パネル固定用ボルト６１には、公知の片締ボルトが使用される。中央パネル部材４１Ａ、４１Ｂ及び周縁パネル部材４２Ａ乃至４２Ｈは、これらを枠１０及び梁２０の各所に載せ置き、縁板４４のボルト挿通孔４４ａを梁２０のボルト挿通孔１７に重ね合わせて、上方から両ボルト挿通孔１７、４４ａにパネル固定用ボルト６１を挿通して締め付けることにより枠１０及び梁２０に固定されている（図２（Ａ）、図２（Ｂ））。   As the panel fixing bolt 61, a well-known single clamping bolt is used. The center panel members 41A and 41B and the peripheral panel members 42A to 42H are placed on the frame 10 and the beam 20 and the bolt insertion holes 44a of the edge plate 44 are overlapped with the bolt insertion holes 17 of the beam 20, Are fixed to the frame 10 and the beam 20 by inserting and tightening the panel fixing bolts 61 through the bolt insertion holes 17 and 44a (FIGS. 2A and 2B).

上記のように、立坑用天蓋１は、それぞれ分割して形成された複数の部材すなわち、枠部材１１乃至１４、 左右一対の中央梁部材２１Ｌ、２１Ｒ、左右の梁部材２５、２８、中央パネル部材４１Ａ、４１Ｂ、及び周縁パネル部材４２Ａ乃至４２Ｈを有して構成されている。各部材の単品重量は、作業員が一人で持ち運ぶことが可能な重量（たとえば５５Ｋｇ以下の重量）である。   As described above, the canopy 1 for the shaft is divided into a plurality of members, that is, the frame members 11 to 14, the pair of left and right central beam members 21L and 21R, the left and right beam members 25 and 28, and the central panel member. 41A, 41B, and peripheral panel members 42A to 42H. The single item weight of each member is a weight that can be carried by an operator alone (for example, a weight of 55 kg or less).

［立坑用天蓋の取付工法１］
つぎに、立坑用天蓋の取付工法について説明する。
図１０乃至図１３は本発明の立坑用天蓋の取付工法の実施形態を例示する一連の工程図である。
立坑用天蓋１は、複数の部材に分割して取り付け現場に運搬される。そして、ライナープレート２の上端部に枠１０を取り付ける工程（図１０）、左側の中央梁部材２１Ｌの横梁部２３と左梁部材２５とを連結し、左側の中央梁部材２１Ｌに一方の中央パネル部材４１Ａを取り付けた状態で、左側の中央梁部材２１Ｌと左梁部材２５とを枠１０に取り付ける工程（図１１）、右側の中央梁部材２１Ｒにもう一方の中央パネル部材４１Ｂを取り付けた状態で、右側の中央梁部材２１Ｒと右梁部材２８とを枠１０に取り付ける工程（図１２）、及び、中央梁部材２１Ｌ、２１Ｒ及び梁部材２５、２８に周縁パネル部材４２Ａ乃至４２Ｈを取り付ける工程（図１３）を順次経ることにより、ライナープレート２の上端開口部に取り付けられる（図１）。図１０の工程には、枠外れ防止用ボルト３５を枠１０に取り付ける工程が含まれる。図１１の工程には、左側の中央梁部材２１Ｌ及び左梁部材２５の４箇所の治具挿入部５１にそれぞれ丸棒等（治具）５２を挿着し、複数の作業員（ここでは４人）が各々治具５２を掴んで共同で中央梁部材２１Ｌ及び左梁部材２５を枠１０上に載せ置く作業工程が含まれる。図１２の工程についても同様である。 [Installation method 1 of canopy for shafts]
Next, a method for attaching the canopy for the shaft will be described.
10 to 13 are a series of process diagrams illustrating an embodiment of the shaft canopy mounting method of the present invention.
The shaft canopy 1 is divided into a plurality of members and transported to the installation site. Then, the step of attaching the frame 10 to the upper end portion of the liner plate 2 (FIG. 10), the horizontal beam portion 23 of the left central beam member 21L and the left beam member 25 are connected, and one central panel is connected to the left central beam member 21L. With the member 41A attached, the left central beam member 21L and the left beam member 25 are attached to the frame 10 (FIG. 11), and the other central panel member 41B is attached to the right central beam member 21R. The steps of attaching the right central beam member 21R and the right beam member 28 to the frame 10 (FIG. 12), and attaching the peripheral panel members 42A to 42H to the central beam members 21L and 21R and the beam members 25 and 28 (FIG. 13) are sequentially attached to the upper end opening of the liner plate 2 (FIG. 1). The process of FIG. 10 includes a process of attaching the frame detachment prevention bolt 35 to the frame 10. In the process of FIG. 11, round bars or the like (jigs) 52 are respectively inserted into the four jig insertion portions 51 of the left central beam member 21L and the left beam member 25, and a plurality of workers (here, 4 This includes a work process in which a person) grabs the jig 52 and places the central beam member 21L and the left beam member 25 on the frame 10 together. The same applies to the process of FIG.

この取付工法によれば、立坑内部での作業や高所足場での作業を要することなく、中央パネル部材４１Ａ及び４１Ｂを立坑の上端開口部の中央部に安全に取り付けることができる。そして、立坑の外側から安全に周縁パネル部材４２Ａ乃至４２Ｈの取り付けを行うことができる。   According to this attachment method, the center panel members 41A and 41B can be safely attached to the central portion of the upper end opening of the shaft without requiring the work inside the shaft or the work at the height platform. And the peripheral panel member 42A thru | or 42H can be safely attached from the outer side of a shaft.

なお、上記の例では、左側の中央梁部材２１Ｌ及び左梁部材２５の取付工程（図１２）の後に右側の中央梁部材２１Ｒ及び右梁部材２８の取付工程（図１３）を実施しているが、両工程の順序を逆にしてもよいことは無論である。   In the above example, the mounting process (FIG. 13) of the right central beam member 21R and the right beam member 28 is performed after the mounting process of the left central beam member 21L and the left beam member 25 (FIG. 12). However, it goes without saying that the order of both steps may be reversed.

［立坑用天蓋の取付工法２］
図１４乃至図１７は本発明の立坑用天蓋の別の取付工法の実施形態を例示する一連の工程図である。
立坑用天蓋１は、複数の部材に分割して取り付け現場に運搬される。そして、ライナープレート２の上端部に枠１０を取り付ける工程（図１０）、左側の中央梁部材２１Ｌと左梁部材２５とを枠１０に取り付ける工程（図１４）、右側の中央梁部材２１Ｒと右梁部材２８とを枠１０に取り付けて、枠１０の内側に縦横に張設された梁２０を形成する工程（図１５）、周縁パネル部材４２Ａ乃至４２Ｈを梁２０に取り付ける工程（図１６）、及び、周縁パネル部材４２Ａ乃至４２Ｈを足場にして、中央パネル部材４１Ａ、４１Ｂを梁２０に取り付ける工程（図１７）を順次経ることにより、ライナープレート２の上端開口部に取り付けられる（図１）。図１０の工程には、枠外れ防止用ボルト３５を枠１０に取り付ける工程が含まれる。 [Installation method 2 for canopy for shafts]
FIG. 14 to FIG. 17 are a series of process diagrams illustrating an embodiment of another attachment method of the shaft canopy of the present invention.
The shaft canopy 1 is divided into a plurality of members and transported to the installation site. Then, the step of attaching the frame 10 to the upper end portion of the liner plate 2 (FIG. 10), the step of attaching the left central beam member 21L and the left beam member 25 to the frame 10 (FIG. 14), the right central beam member 21R and the right A step of attaching the beam member 28 to the frame 10 to form the beam 20 stretched vertically and horizontally inside the frame 10 (FIG. 15), a step of attaching the peripheral panel members 42A to 42H to the beam 20 (FIG. 16), And it attaches to the upper end opening part of the liner plate 2 by passing through the process (FIG. 17) which attaches center panel member 41A, 41B to the beam 20 by using the peripheral panel members 42A thru | or 42H as a scaffold (FIG. 1). The process of FIG. 10 includes a process of attaching the frame detachment prevention bolt 35 to the frame 10.

この取付工法によれば、立坑内部での作業や高所足場での作業を要することなく、立坑の上端開口部の周縁部に周縁パネル部材４２Ａ乃至４２Ｈを安全に取り付けることができる。そして、この周縁パネル部材４２Ａ乃至４２Ｈを足場に使用して安全に中央パネル部材４１Ａ、４１Ｂの取り付けを行うことができる。   According to this attachment method, it is possible to safely attach the peripheral panel members 42A to 42H to the peripheral edge portion of the upper end opening of the vertical shaft, without requiring work inside the vertical shaft or work at a high place scaffolding. The peripheral panel members 42A to 42H can be used as a scaffold to securely attach the central panel members 41A and 41B.

なお、上記の例では、左側の中央梁部材２１Ｌ及び左梁部材２５の取付工程（図１５）の後に右側の中央梁部材２１Ｒ及び右梁部材２８の取付工程（図１６）を実施しているが、両工程の順序を逆にしてもよいことは無論である。   In the above example, the mounting process (FIG. 16) of the right central beam member 21R and the right beam member 28 is performed after the mounting process of the left central beam member 21L and the left beam member 25 (FIG. 15). However, it goes without saying that the order of both steps may be reversed.

［その他の実施形態］
本発明の取付構造及び取付工法は、上記実施形態に限定されない。
たとえば、上記実施形態では、枠外れ防止部材として枠外れ防止用ボルト３５を採用したが、図１８に例示するように、枠１０の管状部１０ａの外面の周方向複数箇所に薄板バネなどからなる引掛片３９を固定し、枠１０を持ち上げてライナープレート２から外そうとしても、引掛片３９がライナープレート２の上端の内周縁に引っ掛かるため、外すことができない構造としてもよい。 [Other Embodiments]
The mounting structure and mounting method of the present invention are not limited to the above embodiment.
For example, in the above-described embodiment, the frame detachment prevention bolt 35 is employed as the frame detachment prevention member. However, as illustrated in FIG. 18, thin plate springs or the like are formed at a plurality of circumferential positions on the outer surface of the tubular portion 10 a of the frame 10. Even if the hooking piece 39 is fixed and the frame 10 is lifted and removed from the liner plate 2, the hooking piece 39 is caught on the inner peripheral edge of the upper end of the liner plate 2, so that the structure cannot be removed.

１ 立坑用天蓋
２ ライナープレート
１０ 枠
１１〜１４ 枠部材
２０ 梁
２１Ｌ、２１Ｒ 中央梁部材
２２ 縦梁部
２３ 横梁部
２５ 左梁部材
２６ 縦梁部
２７ 横梁部
２８ 右梁部材
２９ 縦梁部
３０ 横梁部
３５ 枠外れ防止用ボルト（枠外れ防止部材）
３９ 引掛片（枠外れ防止部材）
４０ 天蓋パネル
４１Ａ、４１Ｂ 中央パネル部材
４２Ａ〜４２Ｈ 周縁パネル部材
５１ 治具挿入部
５２ 丸棒（治具）
６１ パネル固定用ボルト DESCRIPTION OF SYMBOLS 1 Canopy for shaft 2 Liner plate 10 Frame 11-14 Frame member 20 Beam 21L, 21R Central beam member 22 Vertical beam portion 23 Horizontal beam portion 25 Left beam member 26 Vertical beam portion 27 Horizontal beam portion 28 Right beam member 29 Vertical beam portion 30 Horizontal beam Part 35 Frame removal prevention bolt (frame removal prevention member)
39 Hooks (frame removal prevention member)
40 Canopy Panel 41A, 41B Central Panel Member 42A-42H Peripheral Panel Member 51 Jig Insertion Part 52 Round Bar (Jig)
61 Panel fixing bolt

Claims (3)

ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付構造であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記中央梁部材の縦梁部及び前記左右の梁部材の縦梁部の両端近傍には、治具が挿着される治具挿入部が設けられており、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有することを特徴とする立坑用天蓋の取付構造。 For shafts having a ring-shaped frame fixed to the upper end of the liner plate, a beam extending vertically and horizontally inside the frame, and a canopy panel supported by the beam and covering the upper end opening of the liner plate The canopy mounting structure,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
In the vicinity of both ends of the vertical beam portion of the central beam member and the vertical beam portion of the left and right beam members, a jig insertion portion into which a jig is inserted is provided,
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
A shaft canopy mounting structure comprising: a pair of left and right central beam members; and a plurality of peripheral panel members that are supported by the left and right beam members and provided at a peripheral portion of an upper end opening of the liner plate. . ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付工法であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記中央梁部材の縦梁部及び前記左右の梁部材の縦梁部の両端近傍には、治具が挿着される治具挿入部が設けられており、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有し、
前記ライナープレートの上端部に前記枠を取り付ける工程、
前記左右一対の中央梁部材のうち一方の中央梁部材の横梁部と前記左右の梁部材うちの一方の梁部材とを連結するとともに、前記治具挿入部に前記治具を挿着し、当該一方の中央梁部材に前記中央パネル部材を取り付けた状態で、前記治具を掴んで前記枠上に載せ置いて、当該一方の中央梁部材と当該一方の梁部材とを前記枠に取り付ける工程、
前記左右一対の中央梁部材のうち他方の中央梁部材の横梁部と前記左右の梁部材うちの他方の梁部材とを連結するとともに、前記治具挿入部に前記治具を挿着し、当該他方の中央梁部材に前記中央パネル部材を取り付けた状態で、前記治具を掴んで前記枠上に載せ置いて、当該他方の中央梁部材と当該他方の梁部材とを前記枠に取り付ける工程、及び、
前記左右一対の中央梁部材及び前記左右の梁部材に前記周縁パネル部材を取り付ける工程を順次経て、前記立坑用天蓋を前記ライナープレートの上端開口部に取り付けることを特徴とする立坑用天蓋の取付工法。 For shafts having a ring-shaped frame fixed to the upper end of the liner plate, a beam extending vertically and horizontally inside the frame, and a canopy panel supported by the beam and covering the upper end opening of the liner plate Canopy mounting method,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
In the vicinity of both ends of the vertical beam portion of the central beam member and the vertical beam portion of the left and right beam members, a jig insertion portion into which a jig is inserted is provided,
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
A plurality of peripheral panel members supported by the pair of left and right central beam members and the left and right beam members and provided at a peripheral edge portion of an upper end opening of the liner plate;
Attaching the frame to the upper end of the liner plate;
The horizontal beam portion of one central beam member of the pair of left and right central beam members and one beam member of the left and right beam members are connected, and the jig is inserted into the jig insertion portion, In a state where the central panel member is attached to one central beam member, the step of attaching the one central beam member and the one beam member to the frame by grasping the jig and placing it on the frame,
The horizontal beam portion of the other central beam member of the pair of left and right central beam members and the other beam member of the left and right beam members are connected, and the jig is inserted into the jig insertion portion, In the state where the central panel member is attached to the other central beam member, the step of grasping the jig and placing it on the frame, and attaching the other central beam member and the other beam member to the frame, as well as,
The shaft canopy mounting method, wherein the shaft canopy is attached to the upper end opening of the liner plate by sequentially attaching the peripheral panel member to the pair of left and right central beam members and the left and right beam members. . ライナープレートの上端部に固定されたリング状の枠と、当該枠の内側に縦横に張設された梁と、当該梁に支持されてライナープレートの上端開口部を覆う天蓋パネルとを有する立坑用天蓋の取付工法であって、
前記枠は、円弧状の複数の枠部材を有し、
前記梁は、
前記枠の中央部に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右一対の中央梁部材と、
前記枠に前記中央梁部材の縦梁部に対して平行に掛け渡して固定された縦梁部と、当該縦梁部に櫛歯状に固定された横梁部とを有する櫛形の左右の梁部材と、を有し、
前記中央梁部材の縦梁部及び前記左右の梁部材の縦梁部の両端近傍には、治具が挿着される治具挿入部が設けられており、
前記左右一対の中央梁部材の横梁部と前記左右の梁部材とが互いに連結されることにより、前記枠の内側に前記縦梁部と前記横梁部とがそれぞれ縦横に張設された状態になっており、
前記天蓋パネルは、
前記左右一対の中央梁部材に支持されて前記ライナープレートの上端開口部の中央部に設けられる複数の中央パネル部材と、
前記左右一対の中央梁部材及び前記左右の梁部材に支持されて前記ライナープレートの上端開口部の周縁部に設けられる複数の周縁パネル部材と、を有し、
前記ライナープレートの上端部に前記枠を取り付ける工程、
前記治具挿入部に前記治具を挿着し、当該治具を掴んで前記枠上に載せ置いて、前記左右一対の中央梁部材と前記左右の梁部材とを前記枠に取り付けるととともに、前記左右一対の中央梁部材の横梁部と前記左右の梁部材の横梁部とを互いに連結する工程、
前記左右一対の中央梁部材及び前記左右の梁部材に前記周縁パネル部材を取り付ける工程、及び、
前記左右一対の中央梁部材に前記中央パネル部材を取り付ける工程、を順次経て、前記立坑用天蓋を前記ライナープレートの上端開口部に取り付けることを特徴とする立坑用天蓋の取付工法。 For shafts having a ring-shaped frame fixed to the upper end of the liner plate, a beam extending vertically and horizontally inside the frame, and a canopy panel supported by the beam and covering the upper end opening of the liner plate Canopy mounting method,
The frame has a plurality of arc-shaped frame members,
The beam is
A pair of comb-shaped left and right central beam members each having a vertical beam portion fixed over the central portion of the frame and a horizontal beam portion fixed in a comb-tooth shape to the vertical beam portion;
Comb-shaped left and right beam members having a vertical beam portion fixed to the frame in parallel with the vertical beam portion of the central beam member, and a horizontal beam portion fixed to the vertical beam portion in a comb-tooth shape. And having
In the vicinity of both ends of the vertical beam portion of the central beam member and the vertical beam portion of the left and right beam members, a jig insertion portion into which a jig is inserted is provided,
The horizontal beam portion of the pair of left and right central beam members and the left and right beam members are connected to each other, so that the vertical beam portion and the horizontal beam portion are stretched vertically and horizontally inside the frame. And
The canopy panel is
A plurality of central panel members that are supported by the pair of left and right central beam members and provided at a central portion of the upper end opening of the liner plate;
A plurality of peripheral panel members supported by the pair of left and right central beam members and the left and right beam members and provided at a peripheral edge portion of an upper end opening of the liner plate;
Attaching the frame to the upper end of the liner plate;
Inserting the jig into the jig insertion portion, grabbing the jig and placing it on the frame, attaching the pair of left and right central beam members and the left and right beam members to the frame, Connecting the lateral beam portions of the pair of left and right central beam members and the lateral beam portions of the left and right beam members to each other;
Attaching the peripheral panel member to the pair of left and right central beam members and the left and right beam members; and
The shaft canopy attachment method, wherein the shaft canopy is attached to the upper end opening of the liner plate by sequentially attaching the central panel member to the pair of left and right central beam members.
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